linux-kernel - Re: [Cocci] [PATCH v2] coccinelle: api: add kobj_to_dev.cocci script

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Message-ID: <alpine.DEB.2.22.394.2008212234060.2486@hadrien>
Date:   Fri, 21 Aug 2020 22:34:16 +0200 (CEST)
From:   Julia Lawall <julia.lawall@...ia.fr>
To:     Denis Efremov <efremov@...ux.com>
cc:     cocci@...teme.lip6.fr, linux-kernel@...r.kernel.org
Subject: Re: [Cocci] [PATCH v2] coccinelle: api: add kobj_to_dev.cocci
 script

On Fri, 21 Aug 2020, Denis Efremov wrote:

> Use kobj_to_dev() instead of container_of().
>
> Signed-off-by: Denis Efremov <efremov@...ux.com>

Applied, thanks.

julia

> ---
> Changes in v2:
>  - "symbol kobj;" added to the rule r
>
>  scripts/coccinelle/api/kobj_to_dev.cocci | 45 ++++++++++++++++++++++++
>  1 file changed, 45 insertions(+)
>  create mode 100644 scripts/coccinelle/api/kobj_to_dev.cocci
>
> diff --git a/scripts/coccinelle/api/kobj_to_dev.cocci b/scripts/coccinelle/api/kobj_to_dev.cocci
> new file mode 100644
> index 000000000000..cd5d31c6fe76
> --- /dev/null
> +++ b/scripts/coccinelle/api/kobj_to_dev.cocci
> @@ -0,0 +1,45 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +///
> +/// Use kobj_to_dev() instead of container_of()
> +///
> +// Confidence: High
> +// Copyright: (C) 2020 Denis Efremov ISPRAS
> +// Options: --no-includes --include-headers
> +//
> +// Keywords: kobj_to_dev, container_of
> +//
> +
> +virtual context
> +virtual report
> +virtual org
> +virtual patch
> +
> +
> +@r depends on !patch@
> +expression ptr;
> +symbol kobj;
> +position p;
> +@@
> +
> +* container_of(ptr, struct device, kobj)@p
> +
> +
> +@...ends on patch@
> +expression ptr;
> +@@
> +
> +- container_of(ptr, struct device, kobj)
> ++ kobj_to_dev(ptr)
> +
> +
> +@...ipt:python depends on report@
> +p << r.p;
> +@@
> +
> +coccilib.report.print_report(p[0], "WARNING opportunity for kobj_to_dev()")
> +
> +@...ipt:python depends on org@
> +p << r.p;
> +@@
> +
> +coccilib.org.print_todo(p[0], "WARNING opportunity for kobj_to_dev()")
> --
> 2.26.2
>
> _______________________________________________
> Cocci mailing list
> Cocci@...teme.lip6.fr
> https://systeme.lip6.fr/mailman/listinfo/cocci
>

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